DE3763487D1 - METHOD FOR MELTING REDUCTION OF IRON ORE. - Google Patents

METHOD FOR MELTING REDUCTION OF IRON ORE.

Info

Publication number
DE3763487D1
DE3763487D1 DE8787102235T DE3763487T DE3763487D1 DE 3763487 D1 DE3763487 D1 DE 3763487D1 DE 8787102235 T DE8787102235 T DE 8787102235T DE 3763487 T DE3763487 T DE 3763487T DE 3763487 D1 DE3763487 D1 DE 3763487D1
Authority
DE
Germany
Prior art keywords
iron ore
melting reduction
melt
reaction gases
reduction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE8787102235T
Other languages
German (de)
Inventor
Karl Brotzmann
Richard Edwin Turner
Hans-Georg Fassbinder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kloeckner CRA Technologie GmbH
Original Assignee
Kloeckner CRA Technologie GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6295894&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3763487(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kloeckner CRA Technologie GmbH filed Critical Kloeckner CRA Technologie GmbH
Priority to DE8787102235T priority Critical patent/DE3763487D1/en
Application granted granted Critical
Publication of DE3763487D1 publication Critical patent/DE3763487D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen

Abstract

A method for the melt reduction of iron ores, in which iron oxide in the liquid state is substantially reduced and the energy required for the heat balance of the process is generated by adding carbonaceous fuels to the melt and by afterburning the resulting reaction gases, mainly CO and H2. The reaction gases are afterburned successively two or more times in oxygen-containing gas jets that blow into reaction spaces which are effectively independent of each other.
DE8787102235T 1986-03-08 1987-02-17 METHOD FOR MELTING REDUCTION OF IRON ORE. Expired - Fee Related DE3763487D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8787102235T DE3763487D1 (en) 1986-03-08 1987-02-17 METHOD FOR MELTING REDUCTION OF IRON ORE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863607775 DE3607775A1 (en) 1986-03-08 1986-03-08 METHOD FOR MELTING REDUCTION OF IRON ORE
DE8787102235T DE3763487D1 (en) 1986-03-08 1987-02-17 METHOD FOR MELTING REDUCTION OF IRON ORE.

Publications (1)

Publication Number Publication Date
DE3763487D1 true DE3763487D1 (en) 1990-08-09

Family

ID=6295894

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19863607775 Granted DE3607775A1 (en) 1986-03-08 1986-03-08 METHOD FOR MELTING REDUCTION OF IRON ORE
DE8787102235T Expired - Fee Related DE3763487D1 (en) 1986-03-08 1987-02-17 METHOD FOR MELTING REDUCTION OF IRON ORE.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19863607775 Granted DE3607775A1 (en) 1986-03-08 1986-03-08 METHOD FOR MELTING REDUCTION OF IRON ORE

Country Status (15)

Country Link
US (1) US4798624A (en)
EP (1) EP0236802B2 (en)
JP (1) JPS62263908A (en)
KR (1) KR920000520B1 (en)
CN (1) CN1005274B (en)
AT (1) ATE54333T1 (en)
AU (1) AU572043B2 (en)
BR (1) BR8701047A (en)
CA (1) CA1286113C (en)
CS (1) CS265234B2 (en)
DE (2) DE3607775A1 (en)
ES (1) ES2000076T5 (en)
IN (1) IN166837B (en)
SU (1) SU1500166A3 (en)
ZA (1) ZA871469B (en)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3607776A1 (en) * 1986-03-08 1987-09-17 Kloeckner Cra Tech METHOD FOR PRODUCING IRON
DE3737271A1 (en) * 1986-12-23 1988-07-07 Korf Engineering Gmbh MELTING CARBURETTOR
ES2010498T3 (en) * 1988-02-12 1994-07-16 Kloeckner Cra Patent PROCEDURE AND APPARATUS FOR POSTCOMBUSTION.
IN175954B (en) * 1990-03-13 1995-11-25 Cra Services
JP2918646B2 (en) * 1990-07-18 1999-07-12 川崎重工業株式会社 Smelting reduction furnace
DE4042176C2 (en) * 1990-12-29 1993-12-09 Tech Resources Pty Ltd Process for the reduction of metal oxides in the molten state
US5378260A (en) * 1991-07-26 1995-01-03 The United States Of America As Represented By The Department Of Energy Two-zone countercurrent smelter system and process
DE4213007C1 (en) * 1992-04-21 1993-12-16 Tech Resources Pty Ltd Method and device for sealing nozzles in the surrounding refractory lining
DE69324682T2 (en) * 1992-06-29 1999-12-23 Tech Resources Pty Ltd WASTE TREATMENT
DE4307484A1 (en) * 1993-03-10 1994-09-15 Metallgesellschaft Ag Process for the direct reduction of materials containing iron oxide with solid carbon-containing reducing agents
US5733358A (en) * 1994-12-20 1998-03-31 Usx Corporation And Praxair Technology, Inc. Process and apparatus for the manufacture of steel from iron carbide
NL9500264A (en) * 1995-02-13 1996-09-02 Hoogovens Staal Bv Method for producing liquid pig iron.
NL9500600A (en) * 1995-03-29 1996-11-01 Hoogovens Staal Bv Device for producing liquid pig iron by direct reduction.
AUPN226095A0 (en) * 1995-04-07 1995-05-04 Technological Resources Pty Limited A method of producing metals and metal alloys
AUPO426096A0 (en) 1996-12-18 1997-01-23 Technological Resources Pty Limited Method and apparatus for producing metals and metal alloys
AUPO426396A0 (en) 1996-12-18 1997-01-23 Technological Resources Pty Limited A method of producing iron
AUPO944697A0 (en) * 1997-09-26 1997-10-16 Technological Resources Pty Limited A method of producing metals and metal alloys
AUPP442598A0 (en) 1998-07-01 1998-07-23 Technological Resources Pty Limited Direct smelting vessel
AUPP483898A0 (en) 1998-07-24 1998-08-13 Technological Resources Pty Limited A direct smelting process & apparatus
MY119760A (en) 1998-07-24 2005-07-29 Tech Resources Pty Ltd A direct smelting process
AUPP554098A0 (en) 1998-08-28 1998-09-17 Technological Resources Pty Limited A process and an apparatus for producing metals and metal alloys
AUPP570098A0 (en) 1998-09-04 1998-10-01 Technological Resources Pty Limited A direct smelting process
AUPP647198A0 (en) 1998-10-14 1998-11-05 Technological Resources Pty Limited A process and an apparatus for producing metals and metal alloys
AUPP805599A0 (en) 1999-01-08 1999-02-04 Technological Resources Pty Limited A direct smelting process
AUPQ083599A0 (en) 1999-06-08 1999-07-01 Technological Resources Pty Limited Direct smelting vessel
AUPQ152299A0 (en) 1999-07-09 1999-08-05 Technological Resources Pty Limited Start-up procedure for direct smelting process
AUPQ205799A0 (en) 1999-08-05 1999-08-26 Technological Resources Pty Limited A direct smelting process
AUPQ213099A0 (en) 1999-08-10 1999-09-02 Technological Resources Pty Limited Pressure control
AUPQ308799A0 (en) 1999-09-27 1999-10-21 Technological Resources Pty Limited A direct smelting process
AUPQ346399A0 (en) 1999-10-15 1999-11-11 Technological Resources Pty Limited Stable idle procedure
AUPQ365799A0 (en) 1999-10-26 1999-11-18 Technological Resources Pty Limited A direct smelting apparatus and process
US6602321B2 (en) 2000-09-26 2003-08-05 Technological Resources Pty. Ltd. Direct smelting process
US20060228294A1 (en) * 2005-04-12 2006-10-12 Davis William H Process and apparatus using a molten metal bath
US11635257B2 (en) * 2013-09-27 2023-04-25 Nsgi Steel Inc. Smelting apparatus and metallurgical processes thereof

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2894831A (en) * 1956-11-28 1959-07-14 Old Bruce Scott Process of fluidized bed reduction of iron ore followed by electric furnace melting
US3028231A (en) * 1959-01-01 1962-04-03 British Iron Steel Research Processing of metallic ores
FR1314435A (en) * 1961-11-06 1963-01-11 Koninklijke Hoogovens En Staal Method and device for the reduction of iron combinations
US3186830A (en) * 1963-05-20 1965-06-01 William H Moore Melting process
US3734716A (en) * 1971-11-18 1973-05-22 Fmc Corp Steelmaking process
JPS523322A (en) * 1975-06-25 1977-01-11 Ricoh Co Ltd Sheet separate feeding method and the mechanism
DK288176A (en) * 1975-07-04 1977-01-05 Boliden Ab PROCEDURE FOR PREPARING A PARTLY PRE-REDUCED PRODUCT
DE2843303C2 (en) * 1978-10-04 1982-12-16 Korf-Stahl Ag, 7570 Baden-Baden Process and plant for the production of liquid pig iron and reducing gas in a melter gasifier
DE3133575A1 (en) * 1980-08-22 1983-03-10 Klöckner-Werke AG, 4100 Duisburg Gas generation process
DE3318005C2 (en) * 1983-05-18 1986-02-20 Klöckner CRA Technologie GmbH, 4100 Duisburg Process for making iron
DE3418085A1 (en) * 1984-05-16 1985-11-28 Klöckner CRA Technologie GmbH, 4100 Duisburg Iron production process

Also Published As

Publication number Publication date
ES2000076B3 (en) 1990-09-01
AU572043B2 (en) 1988-04-28
KR870009033A (en) 1987-10-22
ATE54333T1 (en) 1990-07-15
AU6919987A (en) 1987-09-10
BR8701047A (en) 1988-01-05
SU1500166A3 (en) 1989-08-07
CS147287A2 (en) 1988-09-16
ES2000076T5 (en) 1998-01-01
EP0236802B2 (en) 1997-11-19
EP0236802B1 (en) 1990-07-04
JPH0219167B2 (en) 1990-04-27
CS265234B2 (en) 1989-10-13
DE3607775C2 (en) 1988-08-25
ZA871469B (en) 1987-08-17
KR920000520B1 (en) 1992-01-14
DE3607775A1 (en) 1987-09-17
IN166837B (en) 1990-07-21
CN1005274B (en) 1989-09-27
EP0236802A3 (en) 1988-06-01
US4798624A (en) 1989-01-17
CN87102252A (en) 1987-09-16
CA1286113C (en) 1991-07-16
EP0236802A2 (en) 1987-09-16
JPS62263908A (en) 1987-11-16
ES2000076A4 (en) 1987-11-16

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8339 Ceased/non-payment of the annual fee